Sectional insulator



s. s. MAITHES.

SECUO'NAL INSULATOB. APPLICATION FILED AUG-3'. 1921.

' 1,405, 0 Patented Feb. 7, 192 2.

wi wmo UNITEDSTATES PATENT OFFICE. v

SAMUEL s. MATTHES, or MANSFIELD, omo, .ASSIGNOB TO THE OHIO BRASS company. or MANSFIELD, 01110, A COR-IORATION or NEW JERSEY.

1 sEc'rIoNAL INSULATOR.

T 0 all to ham it may concern 7 Be it known that I, SAMUEL S. MATTHEs, a citizen of the United States of America, residing at Mansfield,- in the county of Rich,- land and State of Ohio, have invented certain new and usefullmpro'vements in Sectional Insulators, of which the'following is a s ecification. V I

y invention relates to devices for supporting and insulating conductors and more especially to that type of device known as a sectional insulator for trolley conductors where a high voltage is usedupon the conductors.

My invention has for its object the sec tionalizing of the trolley conductor andmeans for conveying the trolley collector from one section to the next section across an insulated portion and so arranged as to. give a smooth under-run when the collector voltage between the sections and the me-' chanical stresses impressed upon the frame.

' To each end of the insulating member is secured a metal end section 2, to which may be secured the end of the trolley wire composing the section. The end members 2 are secured to the insulating member 1 by means of bolts or other fastening devices 3. Between the end members 2 and secured to the insulating member 1 is a bridging member 4 overlapping the-end members 2 and having its lower face in the same plane as the lower face of the end members 2. The ends of the bridging member 4 are upturned in order to allow the passage of the collector from the end member to the bridgin member smoothly.

The bridging 'member a is supported from the insulating member 1 by means of an insulating member 5 secured to the insulating memberl by means of the bolt 6. Secured to the insulating member 5 is a V Specification of Letters Patent." Patented F b '7, 1922 Application filed August 3, 1921. Serial No. 489,521; a

clamping member 7 arranged to be secured to the bridging member 4 by means of the screws 8 and to be secured to the insulating member 5 by means of the bolt 9. The in'-' sulatlng member 1 has the portion 10 cut out to permit the passage of the bridging The bridging 'member 4 is connected to one of the end castings electrically by means of the cable 11 which allows the collector to draw current from one section until it has passed on to the other section. There is a very short interval of time when the'two sections are electrically connected together, i. -e. when the collector is in contact with the bridging member and right-hand end member 2, but as this connection is for only -member from one sideof the structure to the other.

an instant and the potential of the two sections are not widely different there is no disadvantage in this instantaneous. connection but there is the advantage that it practically eliminates the probability of a veryhigh flash as would be thecase if the col-' lector left the live section andpassed on to a dead bridging member.

There are modifications which will occur to those skilled in the art but I do not care tobe limited excepting asset forth in the claims, as follows 1.- A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the conductor a fixed distance apart, and means for guiding the trolley across the break comprising a bar secured to both sides of the insulating means and having portions extend laterally thereof and having the inner ends of the laterally extending portions connected by a crossover member, the lower surface of the bar being in the same horizontal plane as the lower surface of the conductor except the outer ends of the bar which are upturned.

2. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the conductor a fixed distanceapart, andmeans for I guiding the trolley across the break comprising a bar positioned on both sides of the insulating means, extending laterally thereof, and rigidly secured thereto and means 7 connecting the inner ends of the bar.

3. A trolley device comprisingin combination an interrupted conductor, insulating means for holding the terminals of the conductor a fixed distance apart, and means for nally disposed central portion connecting the parts of the bar disposed on opposite sides of the insulating means.

5. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the conductor a fixed distance apart, and means for guiding the trolley across the break comprising a bar disposed on both sides of the insulating means and having its ends overlapping the spaced ends of the conductor and rigidly secured in position and electrically connected to one of the spaced conductors.

6. A trolley wire device comprising in combination an interrupted conductor, in sulating means for holding the terminals of the conductor a fixed distance apart, means for guiding the trolley across the break comprising a bar disposed on opposite sides of the insulating means, said oppositely disposed portions being parallel to the conductor and having the ends overlapping the spaced ends of the conductor and diagonally disposed means bridging theoppositely disposed parallel portions of the bar.

7. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the consubstantially in the same horizontal plane with the lower surface of the conductor;

8. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the con-- ductor a fixed distance apart, means for guiding the trolley across the break comprising a single bar having portions positioned Wholly on either side'ofthe insulating means and a connecting portion positioned on both sides ofthe insulating means and means to secure the bar in position;

9. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals of the conductor a fixed distance apart, means for guiding the trolley across the break comprising a longitudinally dis ose'd member on each side of the insulating ar and means for guiding the trolley from one of said longitudinal members onto the other longitudinal member without simultaneously .engaging the two members.

10. A trolley device comprising in combination an interrupted conductor, insulating means for holding the terminals or the con-' ductor a fixed distance apart, and meansfor guiding the trolley across the break comprising a member extending from a point approximately opposite the conductor ter. 7 V minal at one end of the device to a point approximately opposite the conductor terminal at the other end of the device and having the ends of the guiding means located on opposite sides of the device.

In testimony whereofl aflix my signature. 7 

